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Effect of sodium lauryl sulphate (SLS) on nickel electrowinning from acidic sulphate solutions
Journal article   Peer reviewed

Effect of sodium lauryl sulphate (SLS) on nickel electrowinning from acidic sulphate solutions

U.S. Mohanty, B.C. Tripathy, S.C. Das, P. Singh and V.N. Misra
Hydrometallurgy, Vol.100(1-2), pp.60-64
2009
DOI: https://doi.org/10.1016/j.hydromet.2009.10.003
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Abstract

The effect of sodiumlaurylsulphate (SLS) on the cathodic current efficiency (CE), surface morphology, crystallographic orientations and polarization behaviour of the stainless steel cathode during nickel electrowinning from acidic sulphate solutions was investigated. The results indicated that SLS did not have a significant effect on the cathodic current efficiency. However, noticeable changes in the surface morphology and deposit quality were observed. Cyclic and linear sweep voltammetric studies revealed that an increase in SLS concentration from 2 to 40 mg dm− 3 increased the cathodic potential and shifted the nucleation overpotential (NOP) towards more negative values which was also reflected in the decrease in the rate of electron transfer i.e. i0 values obtained on both the stainless steel and nickel substrates. The presence of SLS did not change the fcc structure of the electrodeposited nickel but affected the peak intensities of the various crystal planes.

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Collaboration types
Domestic collaboration
International collaboration
Citation topics
2 Chemistry
2.210 Corrosion & Deposition Chemistry
2.210.791 Electrodeposition
Web Of Science research areas
Metallurgy & Metallurgical Engineering
ESI research areas
Materials Science
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